GB 
National Standard of the People’s Republic of China   
     
GB xxxx –– 200X  
Replaces GB16914 -2003 and GB17905 -2004  
_______________________________________________________________  
 
 
 
Safety Code for  Gas Burning Appliances  
 
 
 
 
 
 
 
 
 
Date of Issue: 200×-××-××                Implementation Date:  200×-××-×× 
____________________________________________________________________  
Issued  
by General Administration of Quality Supervision,  Inspection 
and Quaranti ne of The People’s Republic of China   
 Contents  
 
Foreword  
 
GB xxxx.1 -200X  
1   Scope  
2   Normative references  
3   Release to the market and free circulation  
4   Judgement procedures of conformance and inspection rules  
5   Basic requirements  
6   Technical measures  
7   Conditions of selected type  
8   Installation of equipment  
 
GB xxxx.2 -200X  
1   Scope  
2   Normative references  
3   Safety and environmental requirements of gas burning appliances and fittings  
4   Responsibilities and obligations  
4.1  Responsibil ities and obligations of producers  
4.2  Responsibilities and obligations of sellers  
4.3  Responsibilities and obligations of gas suppliers  
5   Inspection of gas burning appliances and fittings  
6   Safety and maintenance supervision of gas burning appliance s 
7   Maintenance and scrap judgement of gas burning appliances  
8   Handling of accident  
9   Handling, recycling, reuse and recirculation requirements of scraped gas burning 
appliances  
10   Requirements for the limits of hazardous and toxic substances as w ell as 
pollution control for electronic information products and materials in gas 
burning appliance products  
Annex A (Normative Annex) Installation, fume exhaust and ventilation of gas burning 
appliances, and airtightness of pipeline  
Annex B (Normative Ann ex) Use and maintenance of gas burning appliances  
Annex C (Normative Annex) Quality of gas supply  
Annex D (Normative Annex) Quality of gas burning appliances  Foreword  
 
     This Standard is divided into GB xxxx.1 -200X and GB xxxx.2 -200X.  
     All of the c ontents of this Standard are mandatory.  
GB xxxx.1 -200X  
     This Standard is formulated according to the foreign regulations and standards 
of the European Council Directive 90/396/EEC, “Approximation of the L aws of the 
Member States Relating to Appliances Burning Gaseous Fuels” (English  Version), and 
the actual situation of gas burning appliances in China.  
     This Standard replaces GB 16914 -2003.  
     Compared with GB 16914 -2003, the major changes made to this Standard are 
as follows:  
–– the stipulation “ the conformance judgement procedures and inspection rules 
should be implemented according to the requirements of CJ/T 222” has been added;  
––Table 1, “Basic requirements, topical contents and the various corresponding 
standard requirements”, has been incre ased;  
–– Subsection 6, “Technical measures” has been increased;  
–– Subsection 7, “Conditions of selected type” has been increased;  
–– Subsection 8, “Installation of equipments” has been increased;  
–– the “Corresponding subsection numbers of 90/396/EEC and technical 
differences and their reasons” Have been deleted.  
GB xxxx.2 -200X  
This Standard replaces GB 17905 -1999, “ Safety management regulation of 
gas-burning appliances for domestic use .” 
     Compared with GB 17905 -1999, the major changes made to this Sta ndard are 
as follows:  
–– the risks for the use of product and the requirements of control for hazardous 
and toxic substances has been added to Subsection 3 of the original Standard;  
–– a clause about the responsibility of producers and sellers to retrieve the 
scraped products has been added to Subsection 4 of the original Standard;  
–– the concrete requirements and limitations of product suitability test have 
been added to Subsection 5 of the original Standard;  
–– the inspection requirements of the controlle r and cut -off valve of product 
have been added to Subsection 7 of the original Standard;  
–– the content that the gaseity condition during inspection of accidents related 
to the product has been revised as the most unfavourable gaseity condition; the 
requir ements for CO content in fumes have been revised and requirements regarding the shutdown function of the safe cut -off valve have been revised according to the 
European standards;  
–– information has been added to Subsection 9 about the handling, recycling, 
reuse and recirculation requirements of scraped gas burning appliances.  
–– information has been added to Subsection 10 about the requirements of the 
limits of hazardous and toxic substances as well as pollution control for electronic 
information products a nd materials in gas burning appliance products.  
Annexes A, B, C and D of the Standard are normative annexes.  
This Standard was proposed by the Ministry of Housing and Urban -Rural 
Development of the People’s Republic of China.  
This Standard is under the cen tral management of the North China Municipal 
Engineering Design & Research Institute, the residing unit of Urban -Rural Gas 
Standard Techniques under the Ministry of Housing and Urban -Rural Development.  
The main drafting units of this Standard are:  North Ch ina Municipal 
Engineering Design & Research Institute, _____, _____, _____, _____.  
The main drafters of this Standard are:  GB xxxx.1 -200X  
 
Safety Technical Conditions for Gas Burning Appliances  
 
1   Scope  
 
     This Standard sets the safety technical requ irements for the release to market, 
free circulation, conformance judgement and basic requirements of gas burning 
appliances (hereinafter referred to simply as burning appliances).  
1.1  This Standard applies to:  
     a)  Burning appliances that burn gaseou s fuel for cooking, heating, producing 
hot water, refrigeration, lighting or washing, and are required to have their 
normal water temperature not exceeding 105oC. They also include 
mechanical air -blast burners and heating equipment installed with this kind  
of burner.  
     b)  Safety devices, control devices, regulating devices and other components 
(simply called fittings) independently sold on the market, installed in 
burning appliances or assembled as burning appliances, and these fitting 
should simultaneo usly meet the corresponding standard codes of products.  
1.2   This Standard does not apply to industrial burning appliances designed for the 
implementation of industrial procedures in an industrial site.  
1.3   The gaseous fuel indicated in this Standard re fers to any gas -state fuel under 
the air pressure 101.3kPa and temperature 15oC, and the quality and type of fuel 
should meet the requirements set out in GB 50028 and GB/T 13611.  
1.4   Burning appliances indicated in this Standard as “under normal use” ref er to 
burning appliances that are used in the following situations:  
a)  They are correctly installed according to the installation manual, and 
correct maintenance is performed regularly;  
b)  They are used in circumstances in which there is normal change i n gas 
quality and normal pressure fluctuation of the supplied gas;  
c)  They are used correctly in accordance with the predetermined purposes of 
burning appliances, or can be reasonably used correctly according to the 
intended methods.  
 
2   Normative refere nces 
      The provisions of the following documents become provisions of this Standard 
after being referenced.  For dated reference documents, all later amendments 
(excluding corrigenda) and versions do not apply to this Part; however, the parties to 
the a greement are encouraged to study whether the latest versions of these documents 
are applicable. For undated reference documents, the latest versions apply to this 
Standard.  
     GB/T 13611 Classification and essential property of city gas  
GB/T 16411 Univer sal test methods of gas burning appliances for domestic use  
GB 16691 Portable butane cookers  
GB 16692 Butane cylinders for portable butane cookers  
GB 18111 Gas storage water heaters  
GB 50016 Code of Design on Building Fire Protection and Prevention  
GB 5002 8 Code for design of city gas engineering  
GB 50045 Code for fire protection design of tall buildings  
CJ/T 28 Chinese cooking gas applian ces 
CJ/T 29 Water boiling gas appliances  
CJ/T 113 Gas-fired space heaters for domestic use  
CJ/T 164 Domestic water savin g devices  
CJ/T 187 Steam ing gas appliances  
CJ/T 3030 Large gas cooker for cooking  
CECS 215 T echnical rules for application of g as-fired heating/hot -water combi 
boilers  
CJ/T 222 Quality assessment procedures and test rules for gas burning 
appliances for do mestic use   
CJ/T 228  Gas-fired heating/hot -water combi boilers  
 
3 Release on the market and free circulation  
3.1 Burning appliances and fittings that meet the requirements of Subsection 1 of this 
Standard should take all necessary measures to ensure that t hey will not endanger the 
safety of people, domestic animals and properties under normal use; otherwise, they 
cannot be released onto the market and offered for use.  
3.2 The standards of burning appliances and fittings that meet the requirements of 
Subsect ion 1 of this Standard should support the applicable basic requirements 
specified in Subsection 5 of this Standard.  
3.3 Release onto the market and offer for use of burning appliances and fittings that 
meet the requirements of Subsections 4~7 of this Stand ard should not be forbidden, 
restricted or obstructed.  
3.4 Burning appliances and fittings should meet the requirements of the related national product standards. Only burning appliances and fittings that have been 
inspected and meet the related national s tandards may be released onto the market and 
circulated freely.  
3.5 When appliances and fittings endanger the safety of people, domestic animals and 
properties under normal use, or if the safety performance of the appliances and fittings 
is damaged, the re lated institutions should perform corresponding tests. Meanwhile, 
appropriate measures should be taken by recalling any problematic appliances and 
fittings from the market, forbidding them and restricting them from being released 
onto the market and offere d for use, especially when the above problems are caused 
by the following reasons:  
     a) the appliances and fittings do not meet the requirements of the related 
national standards;  
     b) improper implementation of the related national standards;  
     c ) there are defects in the related national standards.  
 
4   Judgement procedures of conformance and inspection rules  
 
     The judgement procedures of conformance and inspection rules should be 
implemented according to the regulations of CJ/T 222.  
 
5   Bas ic requirements  
 
5.1 General conditions  
5.1.1 The design and manufacturing of burning appliances should ensure that, when 
they are under normal use according to Subsection 1.4 of this Standard, the operation 
is safe and does not bring any danger to people,  domestic animals and properties.  
5.1.2 The following manuals and warnings expressed in standard Chinese should be 
enclosed with burning appliances that are to be released onto the market:  
a) Technical manual for fitters;  
b) User and maintenance manual for  users;  
 c) Special caution symbols, which should appear on both the burning appliances 
and package.  
5.1.3 The technical manual for the fitter must include all explanations required for the 
installation, troubleshooting and maintenance of the product. Such  explanations 
should ensure the correct installation, troubleshooting, maintenance, and safe 
operation and use of the burning appliances.  
The manual should include the following contents:  
a) Type of gas used;  b) Pressure of gas source used;  
c) Circulated f resh air required;  
1) Air supply required for burning;  
2) When the device specified in Subsection 5.3.2.3 of this Standard is not 
provided with the burning appliance, the accumulation of any 
dangerous unburned gas mixtures should be avoided;  
d) Dissipation  conditions of the burning product;  
e) The performance and assembling of mechanical air -blast burners and the 
heating device installed with such burners should meet the applicable basic 
requirements. A recommended assembling list should be provided at the 
appropriate places by the production unit;  
f) Installation and troubleshooting methods for burning appliances.  
5.1.4 The user and maintenance manual should include all explanations required for 
the safe use of the product, in particular explanations on the  restrictions of its use, 
installation environment and ventilation requirements.  
5.1.5 The warning marks printed on burning appliances and their packaging must 
clearly indicate the type of gas to be used, the pressure of the gas source and the 
restrictions  of use, in particular the installation environment and ventilation 
requirements.  
5.1.6 In general, the designed and manufactured fittings of burning appliances must 
be able to fulfil the predetermined purposes after they are assembled in burning 
appliance s according to the installation manual.  
     The producers of the fittings of burning appliances must provide explanations 
concerning installation, troubleshooting, operation and maintenance.  
5.2 Materials  
5.2.1 The materials must be suitable for their int ended purposes, and must be able to 
sustain anticipated technical, chemical and high temperature conditions.  
5.2.2 The properties of the safety -related major materials must be guaranteed by the 
company that produced the burning appliances and the suppliers  of materials.  
5.3 Design and manufacturing  
5.3.1 General rules  
5.3.1.1 The stability and reliability of burning appliances under normal use must be 
guaranteed. There should be no instabilities, deformations, leakages, wearing, cutting, 
or any other aspect  endangering the safety of the overall structure and fittings.  
5.3.1.2 Condensed water produced in fumes when burning appliances are started or 
are being used shall not affect the safety of burning appliances.  
5.3.1.3 In the case of fire occurring to the e xternal part of the burning appliance, it 
should be ensured that the structure, materials and sealing performance of the burning appliances provide the most minimised risk of explosion.  
5.3.1.4 It must be guaranteed that the materials, structure and sealin g performance of 
which the burning appliances are made meet the requirements, and that water and air 
do not enter into the appliances.  
5.3.1.5 When the auxiliary power is normally fluctuated, the safety work of burning 
appliances should be ensured.  
5.3.1.6  When the auxiliary power is abnormally fluctuated, invalid or resumed, it 
should be ensured that the burning appliances are under safe conditions.  
5.3.1.7 The burning appliances should have the necessary protection measures against 
the potential harm of a lternating current (AC) power. Burning appliances and fittings 
using AC power should meet the safety requirements for low -pressure electric 
appliances.  
5.3.1.8 The design, assembling and strength of all burning appliance parts containing 
pressure must meet  the requirements, should be able to bear mechanical and thermal 
stress, and should guarantee that no deformations shall happen to them to affect their 
safety within their life cycle limit.  
5.3.1.9 When the safety, control and regulating devices of burning  appliances 
malfunction, it must be ensured that the burning appliances are turned off or running 
under safe conditions.  
5.3.1.10 When the burning appliances are equipped with safety devices and control 
devices, said devices must meet the corresponding pro duct standards, and the 
functions of the safety devices should not be affected by control and regulating 
devices.  
5.3.1.11 The burning appliances should be positioned or regulated at the 
manufacturing stage. Any parts that are not suitable for operation by  user and fitter 
must be locked or lacquer sealed, and identified by marks. Other protection measures 
may also be taken. Non -professionals shall not dismantle and regulate these parts.  
5.3.1.12 Clear markings and appropriate explanations for the handling a nd other 
safety, regulating, control and positioning devices should be made. Avoid making any 
error during this operation. The devices should be designed in a manner that prevents 
the occurrence of faulty operation.   
5.3.2 Accidental release of gas  
5.3.2. 1 The airtightness (leakage) of the gas system of burning appliances should meet 
the requirements, and the safety of burning appliances should be ensured.  
5.3.2.2 With regard to the procedures and structural design of burning appliances, it 
should be ensur ed that following ignition, re -ignition and flame extinguishment, the 
release of gas is controlled and safely exhausted promptly. Avoid any risks that may 
be caused by the accumulation of unburned gas inside the burning appliances.  5.3.2.3 Indoor burning a ppliances should be equipped with fire -extinguishing 
protection devices. For burning appliances that are equipped without a 
fire-extinguishing protection device, the location in which they are installed should be 
equipped with a gas alarm and cut -off devic e, and kept sufficiently ventilated, so as to 
prevent the accumulation of any unburned gases.  
     The size and ventilation conditions of the location in which the burning 
appliances are installed should be confirmed according to the properties of burning 
appliances.  
5.3.3 Ignition  
     The ignition device of the burning appliances should belong to electric pulse 
ignition, piezoelectric ceramic ignition, or equivalent. It should also be ensured that, 
under normal conditions, the ignition device should meet the following requirements:  
     a) Ignition and re -ignition are stable and safe;  
     b) Cross -ignition should be stable and safe.  
     c) The safety of the burning appliances should be ensured if there is any 
unsuccessful or accidental fire extinguishing . 
5.3.4 Burning  
5.3.4.1 Ensure that the flame is burning stably when the burning appliances are in 
normal use. Hazardous substances in the burning product shall not exceed the limit of 
its concentration. For unsupervised burning appliances that are running  continuously, 
there supervisory control should be established for its fume exhaust and the 
concentration of its hazardous substances.  
5.3.4.2 For burning appliances equipped with flues, it must be ensured that, under 
normal use, the structure, design and airtightness of the fume exhaust system should 
meet the requirements and shall not leak.  
5.3.4.3 For burning appliances equipped with flues, necessary protection measures 
must be taken to ensure that no backflow of fume appears under abnormal fume 
exhaust conditions.  
5.3.4.4 Ensure that in the room using independent flue -free heating appliances for 
domestic use and flue -free fast water heaters, the concentration of carbon monoxide 
(CO) should not exceed the related indoor environmental hygiene standard code .  
The burning appliances must have the supervisory control device of indoor CO 
concentration and the corresponding gas cut -off device. Ensure that within the 
predetermined period of use of burning appliances, the health of people shall not be 
endangered.  
5.3.5 Synthetic use of energy  
     Under the prerequisites that the technical level is fully reflected and the safety 
factors are considered, the energy effect and energy consumption of burning appliances should meet the related standards. Condensed burnin g appliances should 
fully consider the avoidance of corrosion caused to the flue and other parts by the 
condensed fluid.  
5.3.6 Temperature  
5.3.6.1 For the parts of burning appliances located close to the floor or other surfaces, 
the temperature rise of the  floor and surfaces of the surrounding substances should 
meet the requirements set out in the related standards. Its temperature is restricted 
from reaching the extent that endangers the surrounding buildings.  
5.3.6.2 The rise in the surface temperature of  operating parts of burning appliances, 
such as the button and handle, shall cause no harm to users.  
5.3.6.3 With the exception of surfaces and parts relating to heat transfer, the surface 
temperature of the external parts of burning appliances for domesti c use under normal 
conditions shall not cause any harm to users, especially children. Appropriate 
response time must be considered for users.  
5.3.7 Food and domestic water  
     Under the prerequisite that the related requirements are not violated, the 
mate rials and parts for manufacturing burning appliances shall not contain heavy 
metals, such as cadmium, lead, mercury, etc. If they happen to come into contact with 
food and domestic water, their quality shall not be damaged.  
5.4 Comparison of the basic requ irements, topical contents and requirements of 
different standards for burning appliances  
     A list of the comparison of the basic requirements, topical contents and 
requirements of different standards for burning appliances is shown in Table 1.  
Table 1   Comparison of the basic requirements, topical contents and 
requirements of different standards for burning appliances  
Basic 
Require - 
ments  Topical Contents  Requirements of Different Standards  
5.1 General conditions   
5.1.1  Operation safety  When the burn ing appliances are under normal use, no danger 
should be brought to people, domestic animals and properties.  
The burning appliances’ adaptability to gas, the gas supply and 
exhaust of burning appliances, the regulation, control and safety 
devices of burni ng appliances, the fixing and connection of 
burning appliances, the materials and thickness of burning 
appliances, the operability of burning appliances, the airtightness, 
heat flow volume, burning condition, etc. of burning appliances 
should meet the requ irements set out in the related standards.  5.1.2  Manual and special warning 
marks  a) Technical manual for fitters;  
b) User’s and maintenance manual for users;  
c) Dedicated warning marks (on burning appliances and package).  
5.1.3  Manual of installation 
techniques  Gas type, pressure, gas supply and exhaust, installation 
requirements, etc.  
5.1.4  User manual  Knowledge about the use and maintenances of burning 
appliances.  
5.1.5  Special warning marks  Warning contents on burning appliances and package, such as  the 
must -read manual, gas type, pressure, gas supply and exhaust, and 
so on.  
5.1.6  Fittings of burning 
appliances  The regulation, control and safety devices of burning appliances 
should reach the predetermined purposes.  
5.2 Materials   
5.2.1  Properties of materials  No pollution shall be caused to water and food. The quality and 
thickness of materials should meet the requirements for its use.  
5.2.2  Certificates of guarantee for 
materials  The properties of the important safety -related major materials 
have to be guaranteed.  
5.3 Design and manufacturing   
5.3.1  General rules   
5.3.1.1  Reliability and durability  The materials, structure, strength, connection and fixing ways, 
valves, flame detection device, etc. of burning appliances should 
meet the related r equirements.  
5.3.1.2  Condensation of fume 
exhaust  The condensed water for fume exhaust shall not affect the safety 
of burning appliances.  
5.3.1.3  Risk of explosion  The materials, structure and airtightness should meet the 
requirements.  
5.3.1.4  Leaking w ater and air  The materials, structure and airtightness should meet the 
requirements.  
5.3.1.5  Normal fluctuation of 
auxiliary energy  When the auxiliary energy is under the conditions of normal 
fluctuation, disconnection and resumption, the safety of burnin g 
appliances should be guaranteed, and the functions of the safety 
devices, control devices and regulating devices should meet the 
specified requirements.  
5.3.1.6  Abnormal fluctuation of 
auxiliary energy  When the auxiliary energy is under the conditions o f normal 
fluctuation, disconnection and resumption, the safety of burning 
appliances should be guaranteed, and the functions of the 
electromagnetic compatibility, safety devices, control devices and 
regulating devices should meet the specified requirements . 5.3.1.7  Safety of AC power  The parts using AC power must meet the related standard code for 
low-pressure electric appliances.  
5.3.1.8  Pressurised parts  The design, assembling and strength of the pressurised parts have 
to meet the standard code.  
5.3.1. 9 Malfunction of safety 
devices  Safety, regulation and control devices, including flame detection 
device, gas regulator, discharge regulator, cooling fan, water -gas 
linkage device, atmospheric environmental sensor (of CO), 
overheat protection device, serie s valves of gas system, automatic 
cut-off valve, air supply device (Type C burning appliances), 
gas/air proportional control device, and so on, should be ensured 
to be safe under normal and abnormal use.  
5.3.1.10  Safety regulation  The functions of safety devices should not be affected by 
regulating and control devices.  
5.3.1.11  Protection of parts specified 
by manufacturer  The gas pressure regulator, the nozzle of burning appliances or 
discharge regulator, the air sensor (CO) for environmental 
protection,  and so on should be regulated and preset by the 
manufacturer when the products are delivered from the factory, 
and should take the protection measures of fixing or sealing.  
They shall not be dismantled and regulated by non -professional 
people.  
5.3.1.12  Marking and identification 
of The cock and temperature controller of burning appliances that 
regulate and control the turning on and off and regulating of the 
parts should be clearly identified and marked.  
5.3.2  Accidental gas release   
5.3.2.1  Danger of gas leakage  The airtightness (leakage) of the gas system should meet the 
related standard code.  
5.3.2.2  Danger of gas accumulation 
inside burning appliances  The gas release after ignition, re -ignition and flame 
extinguishment should be restricted.  There should be 
fire-extinguishment protection device installed.  The installation 
of valves for burning appliances should meet the requirements, 
and the structure of burning appliances should guarantee the 
immediate dispersion of the released gas.  For example,  fire 
cannot be ignited until the burner is exposed outside, the 
ventilation hole is attached to the burner, and the door of oven is 
opened.  
5.3.2.3  Danger of gas accumulation 
inside a room  Indoor burning appliances should be equipped with 
fire-extinguish ment protection device.  For the burning 
appliances equipped with no fire -extinguishment protection device, the place where they are installed should be equipped with 
a gas alarm and cut -off device, and kept sufficiently ventilated.  
After the sudden fire extinguishment of burning appliances, 
accidents should be prevented from occurring.  
5.3.3  Ignition  The ignition, re -ignition and long -term naked flames should be 
stable and safe.  
5.3.4  Burning   
5.3.4.1  Working conditions of 
burning  The flame should be s table. The CO content in fumes should meet 
the standard code.  
5.3.4.2  Fume exhaust  The gas supply/exhaust funnel of the enclosed (Type C) burning 
appliances as well as the gas exhaust funnel of semi -closed -type 
(Type B) burning appliances should be mechan ically sealed well, 
and meet the specified requirements.  
5.3.4.3  Fume exhaust into a room 
(referring that the burning 
appliances equipped with 
flue are under abnormal 
ventilation condition)  The semi -closed -type (Type B) burning appliances should be 
instal led according to the balanced -type partition room, or 
established with a safety device that cuts the gas supply before the 
burning product installed in the room has reached the dangerous 
volume, and a fume -block safety device that prevents the 
backflow of fume.  
5.3.4.4  Limits of CO and CO 2 
concentration inside the 
room (referring to the Type A 
burning appliances, such as 
the flue -free water heater and 
heating appliances, etc.)  The indoor hygiene conditions should be ensured.  The CO and 
CO 2 concentration i n the air indoors shall not exceed the standard 
code.  The burning appliances should be equipped with a reliable 
cut-off device for the excessive CO and CO 2 concentration 
indoors.  
5.3.5  Reliable energy use  The energy effect and energy consumption of bur ning appliances 
should meet the standard code. The condensed burning appliances 
should fully avoid damage to the flue and other parts by the 
condensed fluid.  
5.3.6  Temperature   
5.3.6.1  Floor and neighbouring 
surfaces  The surface temperature rise of the i nstalled parts of burning 
appliances should meet the standard code.  
5.3.6.2  Control handle  The surface temperature rise of the control handle of burning 
appliances should meet the standard code.  
5.3.6.3  External surface of burning 
appliances  The temperat ure rise on the external surface of burning appliances 
has to meet the standard code.  
5.3.7  Safety of food and domestic 
water  Materials that come into contact with food and domestic water 
shall not affect their quality. The temperature rise of water heate r in times of the stoppage of water supply, as well as the 
temperature rise of the oven with ignitor during the ignition 
period of ignitor should meet the standard code.  
 
6 Technical measures  
 
6.1 Structure  
6.1.1 The structure of burning appliances and th eir parts should consider safety and 
durability requirements, such as the prevention of gas leaks, prevention of fire, etc.  
Under ordinary conditions for transportation, installation and use, the appliances 
should not be damaged or deformed in a manner th at would obstruct their use.  
6.1.2 The different parts should be accurate and flexible.  
6.1.3 When burning appliances are used after normal installation, there should be no 
mobility or inclination.  
6.1.4 The gas interface of burning appliances should be co nnected by the taper pipe 
thread, which should be attached to a location available for easy connection.  
6.1.5 The specified valves of burning appliances should be possessed.  
6.1.6 The gas path should meet the following requirements:  
     a) The airtightnes s of the gas path must meet the related standards. During 
ordinary transportation, installation and use, its airtightness shall not be 
damaged;  
b) The gas pipe should be installed in a location that will not overheat or 
become corroded; otherwise, protecti on measures should be taken;  
c) The connections should be firmly connected by welding, thread, bolt, nut, 
screw, etc.;  
6.1.7 The burners should be assembled according to the following requirements:  
a) Kindling burners (ignition burners), small -fire burners  (long -term naked fire) 
and main -fire burners should be firmly installed at the specified position.  
Ensure that they and the nozzle, burning chamber, electric ignition device, 
safety device, and so on are fixed at correct positions, and would not be 
moved  or fall down during ordinary use.  
b) With the exception of special parts of burning appliances, it is not suitable to 
install them in overheated or damaged locations.  
6.1.8 Burning appliances should be confirmed as available for ignition in the 
operation site of ignition through visual measurement, mirror, voltmeter, indicating 
light, etc. Burning appliances with ignition that are not confirmed must be installed 
with the fire -extinguishment protection device that meets the requirements.  
6.1.9 Burners, heat  exchangers and other main parts should be able to be regulated or changed.  
6.1.10 When in use or being cleaned, the sides and ends of the parts that may be 
touched by the hands should be smooth.  
6.1.11 When cleaning or dismantling parts, the operation sh ould be principally carried 
out using common tools.  
6.1.12 The screws for assembling different parts should be firmly installed. Parts that 
are dismantled during maintenance and inspection should be available for repeated 
use. 
6.1.13 Burning appliances ins talled on walls, erected columns or on the floor should 
be available for easy installation and dismantling. Ordinary piping operations shall not 
cause any abnormal phenomenon, and should be installed firmly.  
6.2 Materials  
6.2.1 The materials used on burnin g appliances should be able to bear mechanical, 
chemical and thermal actions under ordinary use and maintenance.  
6.2.2 With the exception of sealed objects (including the diaphragm, rubber valve 
body) and grease -sealed materials, the gas path and burner sh ould be made of metallic 
materials with a melting point greater than 500oC; the fume path should be made of a 
non-burning material with a melting point greater than 350oC, and should meet the 
following requirements:  
a) Corrosion -resistant metallic material s meeting the related standard code or 
corrosion -resistant material above the equivalent standard should be used.  
The minimum nominal thickness of material should meet the requirements 
set out in Tables 2 - 4. The actual thickness of parts should be great er than 
0.8 time of the nominal thickness.  
b) The metallic material for performing electric plating of the surface should 
take a 24 -hour test according to the requirements of GB/T 16411, and 
should be confirmed corrosion -free; 
c) The metallic material for surface coating should take a 24 -hour test according 
to the requirements of GB/T 16411, and should be confirmed to have no 
rusting, bubbling and shedding phenomena;  
d) The metallic material for surface enamelling should perform ballistic impact 
test accord ing to the requirements of GB/T 16411, and should be confirmed 
to have no shedding phenomenon;  
e) Steel glass materials should perform impact resistance test according to the 
related standard code, and should be confirmed to have no breaking 
phenomenon;  
6.2.3 Sealed objects, sealing materials and other non -metallic sealing materials used 
where gas passes through should meet the following requirements:  a) Rubber, plastic and other materials of the sealed object should be tested 
under the gas -resistant perfor mance test according to the requirements of 
GB/T 16411, and the quality change rate should be less than 20%, without 
any softening and brittling phenomena to affect their use;  
b) Rubber product should perform gas -resistant performance test according to 
GB/T 16411, and the pentane penetration per hour should be less than 5mg;  
c) Grease -sealed material should perform gas -resistant performance test 
according to GB/T 16411, and the quality change rate should be less than 
10% at 20oC, and less than 25% at 4oC. 
6.2.4 The conduction material should be copper and the material possessing the 
electrical performance, thermal stability performance and mechanical stability 
performance should be copper alloy, stainless steel or above. With regard to the 
necessary material s to be used at the portion requiring elasticity and at other portions, 
such restriction is inapplicable when there is no danger.  
6.2.5 The heat -retaining and heat -insulating materials of the gas path, burner and 
electrical parts should perform gas -resista nt performance test according to GB/T 
16411, and should not be burned or should be extinguished within 10 seconds.  
However, such a restriction does not apply to the burning of heat -retaining and 
heat-insulating materials if they will not cause the danger of shock or fire.  
 
Table 2 Minimum nominal thickness of the parts of burning appliances  
Water path  
Material  Burner  Gas path  
Pipe Container  Burning 
chamber  Heat 
transfer 
tube Support 
and 
frame  Panel and 
shell  
Cast parts  3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 
Die-cast parts  1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 
Stainless steel  0.5 0.5 1.0 1.0 0.5 0.5 1.0 0.5 
Steel material for 
surface treatment  1.0 1.0 -- 1.5 1.0 1.0 1.5 0.8 
Aluminium and 
aluminium alloy  1.0 1.0 1.0 3.0 1.0 1.0 1.5 -- 
Copper and copper 
alumi nium  1.0 1.0 0.8 1.5 1.0 1.0 1.5 -- 
Remarks:  1. The water pressure of water storage tank, burning chamber and heat transfer tube should be smaller 
than or equal to 0.3MPa.  
2. The steel material for surface treatment refers to the steel material having go ne through 
anti-corrosion treatment, e.g. enamelling.  
 
 Table 3   Minimum nominal thickness of the water storage milling parts 
(0.3MPa P0.6 MPa ) mm  
Carbon steel, aluminium  Protective steel, stainless steel, copper  
a  b  c  a  b  c  
4.0  3.0  2.9  2.0  2.0  1.0  
Remarks:  1.  The water pressure of water storage tank, burning chamber and heat transfer tube should be 
greater than 0 .3MPa , smaller than or equal to 0.6MPa.  
           2. a: The wall of the burning chamber that has contact with water and fire, and the horizontal wall 
on the surface of heat transmitter (water -fire heat exchange, and so on).  
             b: The rigid surf ace r that has contact with water, e.g. the surface of the heat transmitter outside 
the burning chamber (water -water heat exchange, and so on).  
            c. The pipeline of heat transmitter (cold, hot water pipes, and so on).  
 
Table 4   Minimum nominal thickness of the milled water storage parts 
(0.3MPa P0.6 MPa ) mm  
Rated heat load (kW)  Thin graphite cast iron, 
aluminium  Spheroidal graphite cast 
iron, cast iron, copper  
35  3.5  3.0  
35  4.0  3.5  
Remarks:  The water pressure of water storage tank, burning chamber and heat transfer tube should be greater 
than 0.3MPa , smaller than or equal to 0.6MPa.  
 
6.2.6 The material plate numbers, thickness and execution standards of the main parts 
of burning appliances (Table 2 and Table 3) should be publicized  in the product 
manual.  
6.3 Safety devices  
6.3.1 Burning appliances for domestic use should be equipped with the safety devices 
specified in Table 5. The performance of the safety devices should meet the 
requirements of the related standards.  
Table 5   Saf ety devices of burning appliances for domestic use  
Serial 
No Safety Devices  Scope of Application  
1 Automatic ignition  Different kinds of burning appliances.  
2 Fire observation  Different kinds of burning appliances.  
3 Fire-extinguishment protection  Diffe rent kinds of burning appliances.  
4 Indoor atmospheric environmental 
protection  Vertically placed water heaters, air heater, drying machine 
and heater inside the room.  5 Overheat protection  Shell of closed -type water heater inside bathroom.  
6 Excessive temperature protection  Water systems, like rice pot, water heater, and the 
heating/hot -water combination (combi) boiler, and so on.  
7 Air current supervision and control  Compulsorily arrayed burning appliances.  
8 Overpressure protection of gas system  Gas burning system of portable burning stove (portable 
cooker).  
9 Overpressure protection of hot water 
system  Enclosed -type volumetric water heater and closed -type 
heating system.  
10 Anti-frozen protection  Water systems, like water heater and heating appli ances.  
11 Flue-block protection  Fume exhaust outlet of semi -closed -type water heater and 
heating appliances.  
12 Fume backflow protection of flue  Semi -closed -type water heater and heating appliances.  
13 Electrical grounding protection  Burning appliances with anti -shock protection grades being 
Types I, II and III.  
14 Anti-explosion protection for flue of 
firebox  Semi -closed -type and closed -type water heater and heating 
appliances.  
15 Fume lead -out device  The air exchange fan and range hood attached to th e 
vertically placed stove and water heater  
16 Gas alarm and cut -off device  Installation place of burning appliances with nobody’s 
supervision and the place with poor ventilation.  
 
6.3.2 Burning appliances for public use (commercial use) should be install ed with 
safety devices according to the technical needs of heating.  The performance of 
safety device should be able to meet the requirements of the related standards.  
6.4 Performance  
6.4.1 Safety performance of burning appliances  
     a) Pressure resistan ce and airtightness  
(1) The airtightness and airtight force of gas system (restricted to automatic 
valves only) should meet the specified requirements.  
(2) The pressure resistance and airtightness of water system should meet 
the specified requirements.  
b) Flame stability  
When adopting limit gas to test the corresponding pressure 0.5Pn or 1.5Pn, 
the flame should be stable.  
c) Carbon monoxide (CO) content in fume  
(1) For open -type (vertically placed) burning appliances, it should not be 
greater than 0.1% (a =  1). 
(2) For semi -closed -type and closed -type burning appliances, it should not be greater than 0.2% (a = 1).  
The testing condition: both are tested by adopting limit gas and 1.5Pn or 
the maximum pressure.  
d) Electrical performance  
The grounding, insulatio n, and so on should meet the specified 
requirements.  
6.4.2 Energy efficiency and energy consumption of burning appliances  
     The energy efficiency of burning appliances should meet the related standard 
code. The energy consumption of the gas stoves, wate r heaters and the  
heating/hot -water combi boilers  for domestic use as well as the Chinese cooking stove 
and large cooking stove for public use should meet the requirements of Subsections 
6.4.3 ~ 6.4.5.  
6.4.3 Energy consumption gradation of gas stoves for d omestic use  
a) The rated heat load of the main fire of gas stoves for domestic use should 
be 3.0 ~ 3.5kW.  The energy consumption of the gas stoves for domestic 
use should meet the requirements set out in Table 6.  
Table 6 Energy consumption gradation of g as stoves for domestic use  
Serial No  Heat load 
of Burner 
(kw)  Energy 
consumption index  
(3.5kw = 1)  Identification of 
energy consumption 
grades (colour)  Energy 
consumption grade  
(letters)  
1  2.5  0.71  Green  A  
2  3.0  0.86  Yellowish green  B  
3  3.5  1.00  Yellow  C  
4  4.0  1.14  Orange  D  
5  4.5  1.29  Red E  
b)  The energy consumption gradation of gas ovens should be confirmed 
according to the effective capacity of ovens. The energy consumption 
gradation of gas ovens for domestic use should meet the  requirements set 
out in Table 7.  
Table 7 Energy consumption gradation of gas ovens for domestic use  
Serial No  Heat load 
(kw)  Energy 
consumption index  
(3.0kw = 1)  Identification of 
energy consumption 
grades (colour)  Energy 
consumption grade  
(letters)  
1  2.0  0.67  Green  A  
2  2.5  0.83  Yellowish green  B  
3  3.0  1.00  Yellow  C  
4  3.5  1.17  Orange  D  
5  4.0  1.33  Red E  
 
6.4.4 Energy consumption gradation of gas -fired water heaters and the heating/hot -water combi boilers for domestic use  
     a) Wa ter discharge limit of the water -saving domestic water apparatus for civil 
use (CJ 164 -2002 “Water -saving domestic water apparatus”).  
(1) The water discharge of the water -saving shower for bathing should not 
be greater than 0.15L/s (9L/min.).  
(2) The water  discharge of the water -saving nozzle for cleaning should not 
be greater than 0.15L/s (9L/min.).  
     b) The water discharge rate of the gas -fired water heaters for domestic use and 
the heating/hot -water combi boilers for bathing should be 7 ~ 9L/min.  
The energy consumption gradation should meet the following 
requirements:  
(1) The energy consumption gradation of the fast water heaters and the 
heating/hot -water combi boilers for domestic use should meet the 
requirements of Table 8.  
Table 8 Energy consumptio n gradation of gas -fired water heaters 
and heating/hot -water combi boilers for domestic use  
Serial 
No Water 
discharge rate 
(L/min.)  Heat 
load 
(kw)  Energy 
consumption 
index  
(9L/min. = 1)  Identification of 
energy consumption 
grades (colour)  Energy 
consumpti on 
grade  
(letters)  
1  5 and below  10 0.56 Green  A  
2  7 and below  14 0.78 Yellowish green  B  
3  9 and below  18 1.00 Yellow  C  
4  11 and 
below  22 1.22 Orange  D  
5  13 and 
below  26 1.44 Red E  
(2) The energy consumption gradation of the volumetric gas -fired water 
heaters and the heating/hot -water combi boilers for domestic use 
should be confirmed according to the converted water discharge rate 
(L/min.) of heat load and the requirements set out in Table 8.  
6.4.5 Energy consumption gradation of Chinese c ooking stoves and large cooking 
stoves for public use  
a) The rated heat load for the main fire of Chinese cooking stoves should be 
29.1 ~ 34.9kW, and the energy consumption gradation should meet the 
requirements of Table 9.  
Table 9 Energy consumption grada tion of Chinese cooking stoves  
Serial No  Heat load 
(kw)  Energy 
consumption index  
(34.9kw = 1)  Identification of 
energy consumption 
grades (colour)  Energy 
consumption grade  
(letters)  
1  23.3  0.67  Green  A  
2  29.1  0.83  Yellowish green  B  3  34.9  1.00  Yellow  C  
4  40.7  1.17  Orange  D  
5  46.5  1.33  Red E  
b) The rated heat load for the main fire of the large cooking stoves should be 
52.3 ~ 58.1kW, and the energy consumption gradation should meet the 
requirements of Table 10.  
Table 10 Energy cons umption gradation of large cooking stoves  
Serial No  Heat load 
(kw)  Energy 
consumption index  
(34.9kw = 1)  Identification of 
energy consumption 
grades (colour)  Energy 
consumption grade  
(letters)  
1  46.5  0.80  Green  A  
2  52.3  0.90  Yellowish green  B  
3  58.1  1.00  Yellow  C  
4  64.0  1.10  Orange  D  
5  69.8  1.20  Red E  
 
6.5 Quality evaluation of burning appliances for domestic use  
6.5.1 Burning  appliances that meet the quality standards of burning appliances for 
domestic use can perform itemised sc oring of burning appliances according to the 
different performance indicators specified in Table 11.  
Table 11   Performance indicators of burning appliances for domestic use and 
the corresponding itemized scoring  
Performanc e indicator  
Evaluation item  Itemized 
scoring  Stove  Water heater, 
two-purpose stove  Way of 
verification  
20 Valve turned on and off, air 
pressure 10kPa, no pressure 
reduction for 1 min.  Same as the left  Inspection 
report  
10 Valve turned on and off, air 
pressure 5kPa, no pressure 
reduction for 1 min.  Same as the left  Inspection 
report  Airtightness of 
gas system  
5 Leakage specified in the 
current standards  Same as the left  Inspection 
report  
20 1-1 gas, 0.05% ( = 1)  Same as the left  Inspection 
report  
10 1-1 gas, 0.10% ( = 1)  Same as the left  Inspection 
report  Safety  
CO content in 
fume  
5 Content specified in the 
current standards  Same as the left  Inspection 
report  30 Heat load of main fire  
Qz  3.5kW  Fast water discharge 
rate G  9L/min.  
V olumetric heat load 
Q  18kW  Inspection 
report  
20 Heat load of main fire  
Qz  4.0kW  Fast water discharge 
rate G  11L/min.  
V olumetric heat load 
Q  22kW Inspection 
report  Economi - 
cality  Energy -saving, 
water -saving 
and 
environmental 
protection  
10 Heat load of main fire  
Qz  4.5kW  Fast water discharge 
rate G  13L/min.  
V olumetric heat load 
Q  26kW  Inspection 
report  
30 20 years  20 years  Inspection 
report  
20 15 years  15 years  Inspection 
report  Durability  Age limit  
10 Age limit of scrap judgement 
specified in the current 
standards  Same as the left  Inspection 
report  
 
6.5.2 According to the total scores per item acquired from Table 11, the burning 
appliances for domestic use can have their quality grades confirmed bas ed on the 
following gradation in terms of scores (full score is 100 scores).  
     a) Grade A (1st-class product):  The total scores per item are greater than or 
equal to 90 scores;  
b) Grade B (2nd-class product):  The total scores per item are greater than  or 
equal to 75 scores, and less than 90 scores;  
c) Grade C (3rd class product):  The total scores per item are greater than or 
equal to 60 scores, and less than 75 scores;  
d) Grade D (passed product):  The total scores per item are greater than or 
equal t o 30 scores, and less than 60 scores.  
 
7 Conditions of selected type  
 
7.1 Supporting conditions  
7.1.1 City gas  
     a) The types and basic properties of city gas should meet the requirements set 
out in GB/T 13611.  
     b) The quality of city gas and the p ressure fluctuation range of the supplied gas 
should meet the requirements set out in GB 50028.  
7.1.2 Water supply and drainage  
     a) The quality, volume and pressure of the supplied water should satisfy the need for the running of burning appliances.  
     b) The drainage should satisfy the need for the running of burning appliances.  
7.1.3 Electrical conditions  
     a) The voltage, frequency and power should satisfy the need for the running of 
burning appliances.  
     b) There should be good grounding.  
7.1.4 Installation Location  
     a) The installation location of burning appliances should have gas 
supply/exhaust facilities that match the burning appliances and meet the 
specified requirements. Gas and fume leaks in the running process of 
burning applianc es should not cause any harm to the environment.  
     b) In the basement, semi -basement, or the closed -typed room without any door 
or window for direct access to outdoor space and with poor ventilation, 
there should be a compound alarm and cut -off device i n case of gas and 
fume leakage.  
7.2 Conditions of burning appliances  
7.2.1 Gas stoves for domestic use  
     a) The required wind volume, wind pressure, structural type and outlook 
dimensions of stoves should be able to match with their range hoods.  
b) The embedded stove should match with the stove cabinet, which should 
guarantee the air supply for once. The opening and closing of the door of 
the stove cabinet shall not affect the stability of flame.  
c) Stoves should be equipped with ignition and fire -exting uishment protection 
device. Rice pots should be equipped with temperature control device.  
Portable stoves should be equipped with overpressure protection device.  
d) The heat load of the main fire of stove (including oven and baking apparatus) 
should be co ntrolled within a range of 3.0 ~ 4.0kW.  
e) Each burner should be able to be ignited by matches and ignition rod.  
f) The status of burner should be easy for observation.  
g) The supporting frame of stove should be able to adapt to pan and wok. One 
of the bur ners should be able to adapt to a pan at a diameter of 100mm.  
The strength of the supporting frame of stove should not affect its normal 
use. When a net load of 100N is placed on the supporting frame of stove, 
no deformation or damage should be caused. Wh en 500N horizontal 
component force (canting pull at 40o) is placed in the front part of the shell 
for 15 min., there should be no transient deformation of above 2.5mm 
caused on the stove shell.  
h) Other requirements of the related standards.  7.2.2 Gas -fired fast water heaters for domestic use  
7.2.2.1 Vertically placed (Type A) water heaters should meet the following 
requirements:  
     a) The rated heat load shall not be greater than 12kW.  
     b) There should be an atmospheric environmental sensing device. When the CO 
content in the air at the height 1.5m in a room installed with water heater is 
greater than 0.01% and the CO 2 content is greater than 2.5%, the gas 
supply should be able to be reliably cut off.  
c) The fume exhaust temperature should be higher t han the dew point 
temperature by 15oC. 
d) There should be a 20 -minute timer device.  
e) It should only apply to kitchen cleaning for a short while and intermittently.  
7.2.2.2 Semi -closed -type (Type B) water heaters should meet the following 
requirements:  
a) There should be the installation of a gas cut -off device in the case of 
backflow fumes during working conditions as well as a flue -block device 
in case of disuse condition.  
b) When using air exchange fan and range hood for fume exhaust, the water 
heater s hould be equipped with a linkage device interlocking with the fume 
exhaust device.  Its fume exhaust temperature should be higher than the 
dew point temperature by 15oC. 
7.2.2.3 The closed -type (Type C) water heaters should meet the requirements of the 
related standards.  
7.2.2.4 The hot water production rate of water heaters should adopt the requirements 
of CJ 164.  
7.2.3 Gas -fired volumetric water heaters  
a) The type, structure and safety control devices of water heater should meet the 
requirements of GB 18 111. 
b) The heat storage of water heater should satisfy the bathing need for once, 
and the heat storing time should not be less than 30 min.  
Remarks:  Heat storing time refers to the interval that the volumetric water 
heater stops heating.  
7.2.4 Gas -fired heating/hot -water combi boilers  
a) The type, structure and safety control devices of water heater should meet 
the requirements set out in CJ/T 228.  
b) The selected type, fume design, system design, installation, troubleshooting, 
operation and maintenance o f water heater should meet the requirements of 
CECS 215.  7.2.5 Other burning appliances for domestic use  
a) Portable butane gas stoves should meet the requirements of GB 16691.  
b) Portable butane gas bottles for stove use should meet the requirements of 
GB 16692.  
c) Gas heating appliances for domestic use should meet the requirements of 
CJ/T 113.  
7.2.6 Other burning appliances for business use  
a) Gas -fired large cooking stoves should meet the requirements of CJ/T 3030.  
b) Chinese gas cooking stoves should m eet the requirements of CJ/T 28.  
c) Gas water boilers should meet the requirements of CJ/T 29.  
d) Gas steamers should meet the requirements of CJ/T 187.  
 
8 Installation of equipments  
 
8.1 Installation Location  
8.1.1 The following rooms and parts of a build ing may be installed with burning 
appliances:  
a) Kitchen;  
b) Special room;  
c) Outdoors, external corridor, and unenclosed balcony (all of them should be 
equipped with facilities sheltering from wind, rain and snow).  
8.1.2 The following rooms and parts of a  building cannot be installed with burning 
appliances:  
a) Rooms such as bedroom, living room and bathroom;  
b) Around stairs and safety exits (not restricted to the places beyond 5m);  
c) Places piled up with inflammable and explosive objects;  
d) Places with  wires and electrical appliances.  
e) Liquefied petroleum gas (LPG) and LPG -air mixture burning appliances 
shall not be placed underground or partially underground.  
8.1.3 It is not suitable to install the burning appliances underground and in the 
semi-under ground of a building. Conditionally restricted, the burning appliances 
installed in the underground or semi -underground of a building should meet the 
following requirements:  
     a) There should be hand -operated and automatic mechanical anti -explosion 
ventilation devices underground or in the semi -underground.  There 
should also be the installation of automatic alarm and cut -off device for the 
leakage of anti -explosion gas and carbon monoxide, and the device should 
interlock with the mechanical ventilation device.       b) Safety measures underground, like anti -explosion, pressure relief, and so on, 
should meet the requirements of GB 50016 and GB 50045.  
8.2 Installation of furnace body  
8.2.1 The installation of furnace body should meet the following requireme nts: 
a) The furnace body should be installed on the fire -resistant wall, furnace 
platform or floor that can bear the weight of furnace body.  
b) The installation of furnace body should be firm, kept vertical, and cannot be 
slanted.  
c) When the furnace body is installed above other burning appliances, the net 
horizontal distance between the furnace body and other burning appliances 
shall not be less than 30cm.  
d) There should be necessary operation and maintenance space around the 
furnace body, and the space should satisfy the requirements of the manual.  
8.2.2 The place installed with furnace body should be available for easy connection 
with gas supply/exhaust pipe, heating water supply/return pipe, and the domestic 
hot/cold water pipe.  
8.2.3 The lowest point of the place installed with furnace body should be floor drained 
(restricted to the burning appliances with heating water supply/return pipe).  
8.3 Connection of gas pipe  
8.3.1 The gas type and the pressure of power supply have to be consistent with the 
indication shown on the plate of burning appliances. When they are inconsistent, they 
must be changed or re -regulated by the suppliers of burning appliances  
8.3.2 The gas pipe and the furnace body should be connected to a metallic pipe with 
threaded adaptor, or the aluminium/plasti c composite  pipe especially for gas. There 
should be a valve attached to the front part of the furnace.  
8.3.3 The gas pipe should meet the requirements of maximum input power (load) of 
burning appliances.  
8.3.4 When the pressure of s upplied gas is greater than 5kPa, independent pressure 
regulator should be placed in front of the gas meter.  
8.3.5 The gas supply pipe of burning appliances is connected with the main pipe.  
The dimensions of the main pipe should be greater than the dimens ions of the branch 
pipe of burning appliances.  The diameter of the connecting pipe between burning 
appliances and gas meter should not be less than the diameter of the gas input pipe on 
burning appliances, and should be confirmed according to the maximum discharge, 
length and allowed pressure loss of pipe.  
8.3.6 When using artificial gas, a filter or filtering net should be installed at the gas 
inlet.  
8.3.7 The airtightness of gas pipe and valve should go through the 5kPa pressure test.  During the inspect ion, the gas valve of burning appliances should be turned off. It is 
prohibited to make an overpressure test that may possibly damage the gas valve of 
burning appliances.  
8.4 Connection of water pipe (restricted to heating/hot -water combi boilers and water  
heaters only)  
8.4.1 The diameter of pipe should not be smaller than the diameter of the connecting 
pipe of the furnace body.  The dimensions of the main pipe should be greater than 
the dimensions of the branch pipes of the heating/hot -water combi boiler.  The gas 
discharge and resistance loss while running through the pipe should meet the designed 
requirements.  
8.4.2 Below the pressure relief, spillway, etc. of furnace body, there should be 
drainage facility.  When the drainage is overheated, effective tem perature reduction 
measures should be taken. There should be no valve on the connecting pipe.  
8.4.3 The lowest part of the heating system should be equipped with drainage valve, 
whereas its highest part and the upper part of the radiator should be equipped  with gas 
exhaust valve.  In the system, there should be at least an automatic gas exhaust 
valve.  
8.4.4 The water tank of the open -type heating appliances should be installed at the 
highest place of the heating system. There should be no valve equipped on the 
expansion pipe.  
8.4.5 A filter should be installed on the water return pipe of heating system.  
8.4.6 There should be valves equipped at the warm water inlet and outlet as well as 
the cold water inlet of the furnace body.  
8.4.7 When the pressure of the supplied domestic cold water exceeds 0.6MPa, a 
depressurising valve should be provided. When it is lower than the lowest working 
pressure of equipment, a pressure pump should be additionally provided.  
8.4.8 The surface of the domestic hot water pipe should  be winded by heat -retaining 
material to retain its temperature. The thickness of the heat -retaining material should 
not be less than 20mm.  
8.4.9 Water -saving appliances should be selected for the domestic hot water system.  
8.4.10 The water filling pressur e of the heating water system should not be smaller 
than 0.1MPa.  
8.5 Connection of wire (restricted to the burning appliances using commercial power)  
8.5.1 Burning appliances should use the 220V ± (10%) ~/50H 2 single -phase AC 
power.  
8.5.2 All connecting pi pes of burning appliances shall not serve as the grounding 
wires of electrical appliances.  
8.5.3 Burning appliances using Type I anti -shock protection grade should have reliable electrical grounding. The grounding measures should meet the requirements 
set out in the existing related national standards. Type I burning appliances should 
also be inspected to determine whether grounding wire is reliable and effective.  
8.5.4 The cross -section area of power wire should satisfy the electrical need of 
maximum power  of burning appliances, and should not be small that 3 × 0.75mm2.  
Inspection can be made according to the specifications and dimensions of the power 
wire specified on the manual.  
8.5.5 The connection of power wire has to pay attention to the polarity of p ower wire.  
Live wire (L) –– brown wire; naught wire (N) –– blue wire; and earth wire (E) –– 
yellowish green wire. Type I burning appliances have to adopt the single -phase 
three -hole socket. When facing the socket, the right hole connects with the live wir e, 
the left hole connects with the naught wire, and the upper hole connects with the 
ground wire. The installation way should be “nought for the left, live for the right, and 
earth for the upper.”  
     Comments: The protective grounding can also be indica ted by the sign in this 
pattern, “ 
  .” 
8.5.6 When the indoor temperature controller uses a 220V power so urce, the control 
circuit should be separated from the power system. The temperature controller, 
whether shutdown or under working conditions, shall not affect the turning on of the 
anti-freezing function of the heating/hot -water combi boiler.  
8.6 Installa tion of indoor temperature controller (restricted to heating/hot -water combi 
boilers only)  
8.6.1 The heating/hot -water combi boilers should be equipped with indoor 
temperature/time sequence controller.  
8.6.2 The installation location should meet the follow ing requirements:  
     a) In an area with a stable indoor temperature requiring concentrated heating, 
Indoor temperature controller can be installed on a well -ventilated wall at a 
distance of 1.2 ~ 1.5m from the floor, or the signal output box of 
temperatu re controller can be placed in the area with temperature for 
concentrated heating.  
     b) It should not be installed around the door or window, where it might be 
affected by a cold wind, or in a place affected by radiator or sunlight 
radiation, or any are a reachable by children.  
8.7 Connection of gas supply/exhaust pipe (restricted to the closed -type burning 
appliances only)  
8.7.1 The connection and installation of gas supply/exhaust pipe should meet the 
requirements of product manual and the related natio nal standards.  The gas 
supply/exhaust pipe and its associated parts should be the original manufacturer’s fittings. The coaxial pipe, detachable pipe (double -head pipe), and its adaptor should 
be applicable to the installation of equipment.  
8.7.2 The esta blishment of fume clear blade should meet the following requirements:  
     a) The fume clear blade should be established according to the type and 
maximum length of gas supply/exhaust pipe as well as the requirements set 
out in the manual.  
     b) The spec ifications, dimensions and place of establishment of the fume clear 
blade should be correct.  
8.7.3 The gas absorption/fume exhaust outlet of gas supply/exhaust pipe can be 
installed on the wall, roof or flue.  It is forbidden to insert the flue into the co mmon 
flue dedicated for the non -closed -type burning appliances.  
8.7.4 The length and resistance coefficient of gas supply/exhaust pipe shall not be 
greater than any one of the following numerical values indicated in the manual:  
a) Actual length (applicable  to coaxial pipe);  
b) Equivalent length (applicable to detachable pipe);  
c) Resistance coefficient (applicable to coaxial pipe and detachable pipe).  
8.7.5 When the length of the selected gas supply/exhaust pipe exceeds the allowed 
maximum length, certain p ipe sections should be changed to be the gas 
supply/exhaust pipe of larger diameter. The resistance of the pipe should be 
guaranteed as not exceeding the maximum value specified by the design.  
8.7.6 When the coaxial pipe is horizontally installed on the ex ternal wall, the 
downward inclination should not be less than 3mm/m, and the effective length of its 
external pipe section should not be less than 50mm.  
8.7.7 The installation of detachable pipe should meet the following requirements:  
     a) When Type 1 a nd Type 3 burning appliances are detachable pipes, they 
should be installed in a zone with a perimeter of 50cm.  
b) The gas supply inlet of Type 5 burning appliances should not be installed on 
the wall with buildings on the opposite side.  
Comment:  The type s of burning appliances should adopt the requirements of 
CJ/T 228.  
8.7.8 The connection of burning appliances with gas supply/exhaust pipe should have 
guaranteed good airtightness. The connection length should not be less than 20mm.  
8.7.9 When the naturall y ventilated common flue and the independent flue are to be 
connected to the gas supply/exhaust pipe, the following requirements should be met:  
a) The naturally ventilated common flue and the independent flue are 
applicable to the closed -type compulsory ga s supply/exhaust burning 
appliances.  
b) The structure and dimensions of flue can be confirmed according to the requirements of the related standards.  
c) The flue has good airtightness, no leakage of fume, and good performance in 
fume resistance and heat re sistance. Its heat -retaining performance should 
be good, and no condensation will be caused.  
d) The cross -sectional shape of flue should be circular, square or rectangular.  
It should be in vertical direction, and has no narrow contracted mouth.  
e) Appropr iate separation or heat insulation measures should be taken for the 
flue and the inflammable material.  
f) When the common flue is adopted, only one heating/hot -water combi boiler 
can be installed on each floor, and the total number of combi boilers shall 
not exceed 6.  
g) In the main flue, there should be no mechanical air supply system installed.  
h) Under stable working conditions, the entire flue should be situated at a 
negative pressure situation.  
i) At the bottom of the flue, there should be a collection  chamber of solid 
objects and condensed objects at a height below 0.5m with a sealed 
metallic door.  
j) The wind cap of flue should meet the following requirements:  
(1) The effective area of the wind cap outlet should be greater than the 
cross -section area of the flue.  
(2) The wind cap outlet should avoid the wind pressure belt (positive 
pressure zone).  
(3) The wind cap outlet should avoid the entry of rain and snow.  
8.8 The indoor air exchange equipment (restricted to the open -type and 
semi-closed -type burn ing appliances only)  
8.8.1 General requirements  
8.8.1.1 The fume produced during the burning of gas should be exhausted out of the 
room through the natural air exchange or the mechanical air exchange. When the 
natural air exchange cannot meet the requireme nts, mechanical air exchange should 
be used.  
8.8.1.2 The air exchange equipment inside a building should be selected according to 
the type of burning appliance, type of building, and other conditions. The 
performance and structural type of the air exchange  equipment should satisfy the need 
of gas exhaust, and meet the requirements of the related standards.  
8.8.2 Gas supply/exhaust facility  
8.8.2.1 The gas supply/exhaust facility of the gas burning appliances for domestic use 
should meet the following requir ements:  
     a) The mechanical air exchange facilities, such as air exchange fan, range hood, and so on, should be adopted. The wind pressure (static pressure) and 
wind volume of air exchange facility should meet the following 
requirements:  
(1) The wind pr essure (static pressure) should be greater than 80Pa;  
(2) The wind volume should be confirmed according to the heat discharge 
of the cooking appliances. When using the air exchange fan, the 
wind volume should not be smaller than 40m3/1kW. When using the 
range hood, the wind volume should not be smaller than 30m3/1kW.  
b) The installation of mechanical air exchange facilities, such as air exchange 
fan, range hood, and so on, should meet the following requirements:  
(1) The position of the gas exhaust outlet of  air exchange fan should be 
within 0.8m below the ceiling indoors. The gas supply inlet should 
be at a suitable position indoors.  
(2) The fume exhaust hood of the range hood should be installed at a 
distance of less than 1m from the stove surface, with an ideal 
distance of 0.8~0.9m. The gas supply inlet should be at a suitable 
position indoors.  
     The fume of the range hood can be horizontally exhausted through the external 
wall, and can also be vertically exhausted through the building.  The air shaft sh ould 
be equipped with a device preventing the backflow of fume and the tainting of odour 
(voltage change device or non -return device, etc.).  
8.8.2.2 The gas supply/exhaust facilities of gas -fired water heaters for domestic use 
should meet the following req uirements:  
     a) The flue for natural fume exhaust should meet the following requirements:  
(1) The draft (surplus pressure) should not be below 3 Pa;  
(2) The fume temperature of the fume exhaust outlet should be greater than 
180oC, and should be smaller than 260oC. 
(3) The fume exhaust temperature of the chimney outlet should be higher 
than the dew point of fume by above 15oC. 
(4) When using the common flue, the structure of the flue should be in a 
way that the main and branch flues are juxtaposed. The he ight of the 
branch flue should be at floor height, and its net cross -section area 
should not be less than 0.015m2. The net cross -section area of the 
main flue should be confirmed through calculation under the 
prerequisite that the draft of flue is guarante ed. 
b) The flue for mechanical fume exhaust should meet the following 
requirements:  
(1) The static pressure at the wind machine outlet of the mechanical fume exhaust shall not be less than 80 Pa (semi -closed -type compulsory 
gas-exhaust water heater). The p osition of the flue outlet in the case of 
horizontal exhaust should meet the requirements of GB 50028;  
(2) When using a common flue for the vertical exhaust, the structure of the 
flue should ensure the juxtaposition of the main and branch flues. At 
the int erchange of the main and branch flues, there should be the 
installation of an anti -backflow fume device with reliable 
performance. It is suggested to select the jet plate with eradiation 
function (Venturi absorption device) and the reliable non -return 
one-way valve (check valve, non -return valve).  
     With regard to the fume inlet (at the interchange of the main and branch flues) 
of the flue co -used by several water heaters, the static pressure value when the water 
heater is not used should be less than or  equal to 0.  
8.9 Installation of the alarm and automatic cut -off valve  
8.9.1 The installation of the gas and CO concentration detection alarm should meet 
the following requirements:  
     a) When testing gas that is lighter than air (artificial gas, natura l gas, and so on) 
and fume, the horizontal distance between the detection alarm and burning 
appliances or valve should be within the range of 1~8m. The height of 
installation should be within the range of 0.3m from the ceiling. The alarm 
should not be inst alled above burning appliances. The distance between the 
alarm and the door or window hole should be greater than 0.5m.  
     b) When testing gas that is heavier than air (liquefied petroleum gas/LPG, 
LPG -air mixture, and so on) and fume, the horizontal dis tance between the 
detection alarm and burning appliances or valve should be within the range 
of 0.5~4m. The height of installation should be within the range of 0.3m 
from the floor. The distance between the alarm and the door or window 
hole should be great er than 0.5m.  
     c) The technical indicators of the gas/CO complex detector (including the 
independent detector) should meet the requirements of the related national 
standards.  
8.9.2 The installation of the emergency automatic gas cut -off valve should me et the 
following requirements:  
     a) The automatic cut -off valve should be installed in front of the gas meter 
(with the exception of smart gas meters with automatic cut -off function);  
     b) There should be a hand -operated cut -off valve in front of the  automatic 
cut-off valve.  
8.9.3 The emergency automatic cut -off valve should adopt the product of low voltage ( 24V), pulse switch, on -the-spot manual switch type. Its technical indicators should 
meet the requirements of the related national standards. Wh en an air exhaust device is 
installed, after the emergency automatic cut -off valve is turned off, the air exhaust 
device should be turned on automatically.  
 
 
______________________________________  GB xxxx.2 -200X  
Safety Management Regulations of Gas Burnin g Appliances  
 
1 Scope  
 
     This Standard sets the safety requirements for gas burning appliances and the 
fittings of gas burning appliances for domestic use (simply called burning appliances 
and fittings), the responsibilities and obligations for the prod ucers of burning 
appliances, sellers of burning appliances, suppliers of gas, fixers of burning 
appliances, and consumers of burning appliances, the installation, inspection and 
acceptance of burning appliances, the use, upkeep, maintenance, scrap judgemen t and 
accident handling of burning appliances, the handling, recycling, reuse and 
recirculation requirements of the scraped gas appliances, and the limits of hazardous 
and toxic substances as well as the pollution control for the electronic information 
products and materials in burning appliance products.  
     This Standard applies to the safety management of local and foreign burning 
appliances and fittings using city gas as well as the judgement of responsibilities in 
the cases of accidents.  
 
2.  Normativ e references  
 
     The provisions of the following documents become provisions of this Standard 
after being referenced.  For dated reference documents, all later amendments 
(excluding corrigenda) and versions do not apply to this Part; however, the parties to 
the agreement are encouraged to study whether the latest versions of these documents 
are applicable. For undated reference documents, the latest versions apply to this 
Standard.  
     GB/T 16411 -2006 Classification of city gas  
GB/T 20000.4 -2003 Guide for  standardization  –– Part 4: Safety aspects for 
their inclusion in standards  
CJJ 12 -2000 Rules for installation, inspection and acceptance of gas burning 
appliances for domestic use  
SJ/T11363 -2006 Requirements for Concentration Limits for Hazardous 
Substanc es in Electronic Information Products  
SJ/T11364 -2006 Marking for Control of Pollution Caused by Electronic  
Information Products  
SJ/T11365 -2006 Testing Methods for Regulated Substances in Electrical and Electronic Products  
 
3   Safety and environmental requ irements of burning appliances and fittings  
 
3.1 Under normal conditions of use, the burning appliances and fittings shall not 
cause any hazard to the life and health of consumers, shall not create any loss to 
properties, and shall not pollute the environm ent. 
3.2 Burning appliances and fittings should meet the safety performance and 
environmental performance requirements of the related standards.  
3.3 The following aspects of safety of burning appliances and fittings should also be 
noted:  
     –– The gas qu ality used by burning appliances should be stable. The burning 
appliances should be correctly installed and correctly used.  
     –– When burning appliances and another kind of product are used together, 
hazards may arise.  
     –– It should be made clear th at the burning appliances are suitable to which 
kind of consumers. The danger and dangerous nature of such products 
should be particularly made aware with regard to children, the aged and the 
disabled.  
     –– The possible risks and the expected risks out of wrong operation during the 
use of burning appliances should be considered according to the 
requirements of the standard, GB/T 20000.4 -2003.  
     –– For burning appliance products as well as electronic information products 
and materials in the products p roduced, sold and imported in the territory of 
China, pollution and other hazards caused by such products to the 
environment should be controlled and decreased. The contents of lead, 
mercury, cadmium, sexavalent chrome , polybrominated biphenyls  (PBB) 
and polybrominated  ether (PBDE) should be controlled, and the marking and 
identification requirements should meet the requirements of this Standard.  
     –– The handling, recycling, reuse and recirculation requirements of the burning 
appliance products produced , sold and imported in the territory of China 
should meet the requirements set out in this Standard.  
 
4   Responsibilities and obligations  
 
4.1 Responsibilities and obligations of producers  
4.1.1 The producers of burning appliances and fittings should comp ly with the related 
safety requirements over the design, production and sale of burning appliances and fittings. The products released to the market should be the safe products.  
4.1.2 Towards the foreseen behaviours that may affect the safety of products d uring 
the sale, installation and use of products, protection measures have to be taken to 
protect the safety performance of products from being damaged during the 
abovementioned processes, e.g., when applying the sealing stamp, sealing wax or 
adopting the unusual bolt connection.  
4.1.3 Because burning appliances and fittings are unsafe products, in case of harm 
caused to the human body or loss of properties, the producers should bear the related 
responsibilities.  
4.1.4 If the burning appliances and fittings  are confirmed to be safe products, and the 
harm and loss are confirmed to be caused at the fault of the victim, or by the fault of 
another person deemed responsible for the victim, then the producer concerned may 
be exempt from or may reject the related c ompensation responsibility.  
4.1.5 The producer is obliged to take part in the safety promotion activity held in 
times of the release of products to the market, and should especially provide the 
information of hazards of the burning appliances and fittings,  enabling the consumers 
to know the possibly foreseen hazards during the installation and use of the products, 
even if some of them are very small hazards.  
4.1.6 The producers should bear the responsibilities of the recycling, handling, 
recirculation and r euse of the scraped burning appliances.  
4.2 Responsibilities and obligations of the sellers  
4.2.1 The sellers should be responsible and obliged to sell safety conditions and safe 
fittings on the market.  
4.2.2 After a seller selling and importing burning ap pliances and fittings has been 
recognised by a foreign enterprise, it immediately becomes the representative of the 
foreign enterprise. Both the foreign enterprise and the seller should be responsible for 
the safety of the burning appliances and fittings.  
4.2.3 During the selling process, the behaviours of the seller may affect the safety 
performance of products. Hence, measures have to be taken to guarantee the safety 
performance of products. The seller is obliged to tell the consumers which measures 
they should take during the installation and use of the burning appliances and fittings.  
If necessary, the seller, together with the producer, should offer training, and make 
investigation and interviews, so as to track, inspect and test the products, and stud y 
the complaints about the safety of the products.   
4.2.4 If the burning appliances and fittings are confirmed to be safe products, and any 
harm and loss is confirmed to be caused by the fault of the victim, or the fault of 
another person deemed responsib le for the victim, then the seller concerned can be 
exempt from or may reject the related compensation responsibility.  4.2.5 The seller is obliged to provide any relevant information to consumers, and 
should especially provide information pertaining to haz ards of the burning appliances 
and fittings, enabling consumers to know of any possible foreseeable hazards during 
the installation and use of the products, even if some are very small hazards.  
4.2.6 The sellers are obliged to assist the producers of burni ng appliances in the 
recycling, handling, reuse and recirculation of the scraped and old gas appliances and 
fittings.  
4.3 Responsibilities and obligations of the gas suppliers  
4.3.1 The quality of gas provided by the gas suppliers should meet the related 
regulations, requirements and commitments.  
4.3.2 The gas suppliers are obliged to instil in consumers the knowledge of the safe 
use of gas.  
4.4 Responsibilities and obligations of the fixers and maintenance staff of burning 
appliances  
4.4.1 The installatio n unit and maintenance unit of burning appliances have to acquire 
certification.  
4.4.2 The fixers and maintenance staff of burning appliances have to be trained, and 
acquire certification.  
4.4.3 The installation and maintenance of burning appliances have t o meet the 
requirements of the related standards and codes.  
4.4.4 The fixers and maintenance staff should be responsible for the quality of the 
burning appliances installed and maintained.  
4.4.5 The fixers and maintenance staff are obliged to provide cons umers with safety 
information.  
4.5 Responsibilities and obligations of the consumers  
4.5.1 After consumers have purchased a burning appliance, they should carefully read 
the installation manual and user manual, and use the product correctly according to 
the related requirements set out in the manuals.  
4.5.2 The consumers should provide a location for the installation of the product 
which should meet the installation requirements and should guarantee the normal use 
of burning appliances.  
4.5.3 The consumers should regularly perform routine, simple and operable cleaning 
and maintenance of burning appliances according to the requirements of the user’s 
manual.  
4.5.4 If a consumer finds any abnormal phenomena with regard to the burning 
appliances, they should imm ediately stop using them and promptly contact the seller 
or producer to achieve technical support and protection.  
4.5.5 If an accident occurs, the scene must be well retained and the related authorities should be reported.  
4.5.6 The consumers should consid er the possible risks that may happen to children, 
the aged and the handicapped during use of the product.  
 
5   Inspection of burning appliances and fittings  
5.1 The type test of burning appliances and fittings should be performed according to 
the related  standards of burning appliances and fittings.  The inspection units should 
be the inspection institutions of burning appliances authorized by the nation.  
5.2 The inspection of the burning appliances and fittings that belongs to compulsory 
product manageme nt should be conducted according to Directive No 5 of General 
Administration of Quality Supervision,  Inspection and Quarantine  (AQSIQ) , The 
People’s Republic of China , “China Compulsory Certification (CCC).”   The 
inspection of burning appliances and fittin gs that belongs to application for product 
license should be conducted according to Directive No. 19 of AQSIQ, “ Measures for 
the Administration of Manufacturing License for Industrial Products .” 
5.3 The market supervision and sampling inspection of burning  appliances and fittings 
should be conducted according to Directive No 13 of AQSIQ, “Administration  
Methods of National Supervision and Spot Check on Product Quality .” 
5.4 The producers and sellers of burning appliances should apply for gas suitability 
inspection of the burning appliances using artificial gas from the inspection institution 
appointed by the local technical quality supervision authorities. For the suitability 
inspection, it is only required to undergo the inspection of the most unfavourable gas 
conditions of burning appliances, including incomplete burning, staying away from 
flame, yellow flame, tempering and CO content in fume. Only if the suitability 
inspection of the burning appliances is passed, “it is not allowed to restrict the 
enterpri ses and individuals of other districts from engaging in the production 
operation and services, and it is not allowed to restrict the products of other districts 
from entering the market of the district” “according to the regulations of Clause 15 of 
“Admini stration Permit Law, The People’s Republic of China .” 
 
6 Supervision during the installation and maintenance of burning appliances  
 
     Supervision during the installation and maintenance of burning appliances 
should meet the regulations of Article 5 of D irective No 73 of the Ministry of Housing 
and Urban -Rural Development (MOHURD), the People’s Republic of China, 
“Measures for the Administration of Installation and Maintenance of Gas Burning 
Appliances,” “The construction and administration supervisory de partments of the 
State Council are responsible for the supervisory management work of the installation and maintenance of the gas burning appliances of the whole nation.”  
     The installation, maintenance, inspection and acceptance of the burning 
applianc es should meet the requirements of standard CJJ 12.  
 
7   Maintenance and scrap judgement of burning appliances  
 
7.1 The maintenance company of burning appliances should meet the regulations of 
Article 23 of Directive No 73 of the MOHURD, “Measures for the Administration of 
Installation and Maintenance of Gas Burning Appliances,” “The enterprises engaging 
in the maintenance of gas burning appliances should be established by the producers 
of gas burning appliances, or by the maintenance firms of gas burning a ppliances 
established under the authorization of gas burning appliances producers.”  The 
maintenance work should meet the regulations of Article 26 of “Measures for the 
Administration of Installation and Maintenance of Gas Burning Appliances,” “The 
firms e ngaging in the installation and maintenance of gas burning appliances should 
establish a sound management system and a normalized service standard.”  
7.2 When using the burning appliances, users should always observe and pay attention 
to the situation of us e. If there is any abnormal situation found, the user should ask the 
maintenance unit for reparation immediately. The maintenance stations and gas 
suppliers having signed contracts with the producers of burning appliances should 
regularly perform or be aut horized by users to conduct safety inspection of burning 
appliances and safety propaganda, and keep the inspection records. For the 
problematic burning appliances, written comments on inspection and reparation 
should be proposed, and the records should be filed. The inspection contents are as 
follows:  
     a) The functions of different operation parts of burning appliances, and the age 
limit of burning appliances;  
b) The flame stability during the burning of burner;  
c) The function of controller, the normal  switch -off function of safety valve, 
and the safe switch -off function during malfunctioning;  
d) The airtightness and draft of the flue, and the airtightness of the connecting 
pipes of burning appliances;  
e) Whether the flue and the gas supply funnel are b locked, and whether the gas 
exhaust system is smooth;  
f) Safety inspection of AC power, and the inspection of the installation 
environment and grounding conditions of burning appliances;  
g) The airtightness and safety of the steel bottle, angle valve, pres sure regulator 
and rubber connecting pipe of liquefied petroleum gas (LPG).  h) Records of maintenance or the replacement of damaged parts.  
7.3 Scrap judgement of burning appliances  
7.3.1 As from the day the burning appliances are sold, the age limit for th e scrap 
judgement of artificial -gas water heaters is 6 years, whereas the age limit for the scrap 
judgement of LPG and natural gas water heaters is 8 years. The age limit for the scrap 
judgement of the burning appliances like stoves, steamers, Chinese cook ing stoves, 
etc. is 8 years. The age limit for the scrap judgement of volumetric water heaters, 
two-purpose stoves, condensed water heaters, etc. is 8 years. If the age limit for the 
scrap judgement of products or fittings is specified by the related firms , the scrap 
judgement is based on the statement of the firms.  If the burning appliances or 
fittings (such as the gas -operated air conditioners, electromagnetic stoves, LPG steel 
bottles, angle valves, LPG pressure regulators, burning appliances controller s, 
automatic electromagnetic valves, and so on) do not have any age limit of scrap 
judgement specified, the age limit of scrap judgement is 10 years based on the related 
regulations of Article 45 of “Product Quality Law, the People’s Republic of China.”  
7.3.2 For burning appliances such as gas water heaters etc., when one of the following 
malfunctions continues to occur after inspection and reparation, even if the age limit 
of scrap judgement is not due, the burning appliances should be still be judged as 
scrapped:  
a) The working conditions of the burner seriously deteriorate. After inspection 
and reparation, the CO content in fume still cannot reach the related 
standard code;  
b) The burning chamber and the heat exchanger are seriously burned, or flame 
leaks  out of them;  
c) Water leakage, gas leakage, and the insulation is broken, causing power leak;  
d) After the electronic controller is inspected and repaired, malfunctions still 
occur.  
 
8 Handling of accident  
 
8.1 The handling of accidents related to burning  appliances should be carried out 
according to the regulations set out in Article 29 of Directive No 73 of the MOHURD, 
“Measures for the Administration of Installation and Maintenance of Gas Burning 
Appliances,” “When any units and individuals have found a n accident of burning 
appliances, they should immediately cut off the power, take the measures of 
ventilation and fire prevention, and report the situation to the related authorities.  
According to the regulations of Directive No 10 of MOHURD, ‘City Gas Sa fety 
Administration Measures’ and Directive 62 of MOHURD, ‘City Gas Administration Methods,’ the related authorities should investigate the accident. If the cause of the 
accident is confirmed to be the installation and maintenance problems of the gas 
burni ng appliances, the related authorities should ask the installation and maintenance 
firms of the gas burning appliances to take handling measures according to the related 
regulations.”  
8.2 The first witness should retain the scene well, and immediately repo rt the situation 
to the related authorities for making on -the-spot investigation and sealing the burning 
appliances.  
8.3 The handling of serious accident should be according to the related regulations.  
The related authorities should form an accident inves tigation team to carry out the 
investigation and handling.  
8.4 When handling the accidents of burning appliances, there should be 4 technical 
appraisement certificates issued for the accident according to the related regulations 
and standards of burning ap pliances:  
     –– Installation of burning appliances, ventilation for fume exhaust, and 
airtightness of pipeline (please refer to normative Annex A);  
–– Use and maintenance of burning appliances (please refer to normative 
Annex B);  
–– Supply quality of bur ning appliances (please refer to normative Annex C);  
–– Quality of burning appliances (please refer to normative Annex D).  
8.5 When inspecting the burning appliances of an accident, after the inspection 
institution has removed the foreign matters from the burning appliances of the 
accident, the following tests should be performed according to different accident 
types:  
a) CO intoxication related accidents (the following performance should meet 
the requirements clearly stated on the related standards of produ cts): 
–– Airtightness of burning appliances;  
–– Flame stability;  
–– CO content in fume.  
b) Accident caused by gas leaks:  
–– When the gas inlet of burning appliances is under the air pressure of 
4.2kPa, the leakage should be less than 0.07L/h;  
–– Inspect th e airtightness of the gas pipe and the pipe connecting with the 
gas appliances.  
     c) Accident of AC power shock: inspect the installation environment and 
grounding conditions of burning appliances, and inspect the voltage 
resistance strength of burning  appliances according to the related 
regulations of GB4706.  8.6 For damage and loss of property caused by the violation of regulations, the 
responsibilities and compensation should be implemented according to the related 
regulations of “Product Quality Law , the People’s Republic of China.”  
 
9   Handling, recycling, reuse and recirculation requirements of scraped gas 
burning appliances  
 
9.1 According to the requirements of “Cleaner Production Promotion Law, the 
People’s Republic of China” and “Law on the Pre vention and Control of 
Environmental Pollution by Solid Wastes, the People’s Republic of China,” the 
environmental pollution by scraped burning appliance products should be controlled 
and decreased. The purpose of stipulating the handling, recycling, reuse  and material 
recirculation of the scraped gas appliance is to maintain, protect and improve the 
quality of the environment, protect the health of human beings and cautiously use the 
natural resources.  
9.2 Pollution control of gas appliance products refers  that the following measures 
should be taken to decrease or eliminate the toxic and harmful substances or elements 
in gas appliance products, such as lead, mercury, cadmium, sexavalent chrome , 
polybrominated biphenyls  (PBB) and polybrominated  ether (PBDE),  etc.:  
     –  In the design and production processes, technical measures can be made, e.g. 
change and study the design plan of product, adjust the technical 
procedures, change the materials used, renovate the manufacturing 
methods, etc.  Provided that the  requirements of product performance are 
met, adopt harmless, non -toxic or low -harm, low toxic, easily degradable, 
recyclable and reusable materials, and fully consider the production 
techniques that are favourable to the maintenance, possible upgrading, 
easy dismantling, easy reuse and recirculation of products.  
     –– In the design, production, sale and import processes, indicate the names and 
contents of harmful and toxic substances, and mark the environment 
friendly age limit of products.  
     –– In th e sale and import processes, reject any sale and import of gas appliance 
products and parts that are not meeting the requirements of this Standard.   
The producer should provide in the product manual the identification 
information of the components and mat erials of the product, provide users 
with the recycling and collection system of the useable scraped gas 
appliances, tell users not to handle the scraped gas appliances as the 
unclassified urban scraped objects, propagate to users their helpful action 
in the handling, recycling, reuse and material recirculation of the scraped gas appliances, and promote to users the existence of the potential threats 
of hazardous and toxic substances in the scraped gas appliances against the 
environment and health of human beings.  
9.4 When buying new burning appliance products, the users of the burning appliance 
products are encouraged to return the scraped gas appliances to the burning appliance 
producer free of charge on one -to-one foundation.  The burning appliance produc ers 
are liable to the charges for the handling, recycling, reuse and material recirculation of 
the scraped gas appliances.  The producers should be able to fulfil this obligation 
independently or through the joining of united plan.  
9.5 If the producers of burning appliance products are able to be responsible for the 
work of handling, recycling, reuse and material recirculation of the scraped gas 
appliances independently, they are not required to join the united fund plan.  As to 
the producers of burning app liance products without these abilities, when they release 
their burning appliance products to the market, they should provide a handling 
guarantee fund of products, preventing the scraped gas appliances from being left 
behind and passed over to other prod ucers to take over the handling responsibility.  
9.6 The united fund plan of the handling, recycling, reuse and material recirculation of 
the scraped gas appliances should be implemented by a third -party reuse centre 
organized by the industry association, o r by a third -party reuse centre after signing 
contract with the producers of burning appliance products.  The handling and 
recycling charges for the scraped gas appliances historically left behind shall be 
proportionally shared independently or through the  joining of united fund plan by all 
the producers during the happening of costs.  The united fund plan should not 
exclude the small -output producers, importers and new producers.  The handling 
guarantee fund of the producers of burning appliance products s hould be a transparent 
loan plan with a safe bank account.  
9.7 The third -party reuse centre for the handling and recycling of the scraped gas 
appliances refers to the approved and professional enterprise particularly engaging in 
the handling, recycling, re use and material recirculation of the scraped gas appliances.  
Within one year after each kind of new burning appliance product is released to the 
market, the producer of the burning appliance product has to provide to the reuse 
centre with the information  of reuse and handling methods of the gas appliance.  The 
required information includes the environment friendly handling methods, 
maintenance, upgrading, renovation, reuse, etc. Meanwhile, the identification methods 
of electronic, electrical components an d materials, and the electronic and electrical 
parts with hazardous and toxic substances or elements should be provided.  
9.8 Every year the industry association should make statistics on the kinds and 
quantity of the collected, reused, recycled and recycle d scraped gas appliances released to the market within the nation or province and through different means.  
 
10 Requirements of the limits of hazardous and toxic substances as well as the 
pollution control for the electronic information products and materia ls in 
gas burning appliance products  
 
10.1 The electronic information products and materials of gas burning appliances 
(simply called GBA) have to meet the requirements of the limits of hazardous and 
toxic substances and the requirements of identification for pollution control specified 
in this Standard.  
10.2 The toxic and hazardous substances or elements in the electronic information 
products and materials of gas burning appliances refer to the substances or elements, 
like lead, mercury, cadmium, sexavalen t chrome , polybrominated biphenyls  (PBB) 
and polybrominated  ether (PBDE), and so on.  
10.3 The classification for the basic composing units of burning appliance products is 
shown in Table 10.3.1, and the related terms and definitions are shown in 
SJ/T11363 -2006.  
Table 10.3.1   Classification of composing units  
Kinds of Composing Units  Definition of Composing Unit  
GBA -A Different homogeneous materials that compose the burning appliance 
products  
GBA -B Metal coated materials of different parts in burning appl iance products  
GBA -C Small parts or materials that cannot be further dismantled from 
burning appliance products under the current conditions, generally 
referring to the products with specifications smaller than or equal to 
1.2mm3. 
10.4 Requirements for t he limits of toxic and hazardous substances  
     The producers of burning appliance products should carry out the classification 
of composing units for the parts and materials used by them according to Table 10.3.1, 
and should control the contents of toxic  and hazardous substances according to the 
requirements of limits indicated in Table 10.4.1. When performing supervisory 
inspection, the supervisory inspection institution of burning appliance products should 
dismantle the products to an extent that they m eet the requirements of classification 
specified in Table 10.3.1, and then perform the supervisory test to see if they meet the 
requirements set out in Table 10.4.1.  
Table 10.4.1   Requirements of limits of toxic and hazardous substances  
Kinds of Units  Requirements of limits (for those with the limit of quantity value,  
all units are expressed in weight percentage, wt. %)  GBA -A In this kind of composing unit, the contents of lead, mercury, sexavalent chrome , 
polybrominated biphenyls  (PBB) and polybrominate d ether (PBDE) should not 
exceed 0.1%, and the content of cadmium should not exceed 0.01%.  
GBA -B In this kind of composing unit, the hazardous substances of lead, mercury, 
cadmium , sexavalent chrome , polybrominated biphenyls  (PBB) and 
polybrominated  ether  (PBDE) should not be deliberately added.  
GBA -C In this kind of composing unit, the contents of lead, mercury, sexavalent chrome , 
polybrominated biphenyls  (PBB) and polybrominated  ether (PBDE) should not 
exceed 0.1%, and the content of cadmium should not exceed 0.01%.  
 
10.5 The test methods for testing the toxic and hazardous substances in burning 
appliances should be implemented according to SJ/T 11365 -2006.  
10.6 The identification requirements for the electronic information products in 
burning appliance  products and the pollution control of material as well as the 
identification requirements for the environment friendly age limit should be 
implemented according to SJ/T 11364 -2006.  
10.6.1 The pollution control marks of burning appliance products should be  identified 
according to the requirements of this Standard.  The marks should be clear, 
identifiable and visible, cannot be easily faded, and cannot be easily removed.  
10.7 According to the regulations of “Measures for the Control of Pollution from 
Electro nic Information Products,” the producers of electronic information products 
and materials should clearly indicate the products with toxic and hazardous 
substances or elements having entered the market of China.  They should adopt the 
ways of sticking label s and giving explanation on the product manual, telling users or 
consumers the names, contents, environmental friendly age limit of the toxic and 
hazardous substances or elements, whether they can be recycled when being discarded, 
the names of the packagin g materials, and other information relating to environmental 
protection.  
10.8 The scope of electronic information products and materials required for 
identification and explanation are shown in “Classified Commentary of Electronic 
Information Products” edi ted by the classified index of electronic information 
industries, which are confirmed by National Bureau of Statistics of China. The 
burning appliances’ controller, electromagnetic valve, electronic ignitor, piezoelectric 
ceramic ignitor, switch of wind pr essure, switch of micro drive, temperature and flow 
sensor, relay, liquid crystal display, circuit board, microprocessor, integrated circuit, 
discrete component, wire, packaging material, and heat exchanger with lead, etc. must 
clearly indicate any toxic a nd hazardous substances or elements.  
10.9 The environment friendly age limit of electronic information products refers to the safe age limit of environmental quality. It only refers to the age limit in which the 
electronic information products and material s containing toxic and hazardous 
substances or elements would not cause any leakage or mutation, and would not 
produce environmental pollution or bring serious damage to human body or properties.  
The environment friendly age limit is not equivalent to the  age limit of safe operation.  
However, the environment friendly age limit can be the same age limit for the scrap 
judgement of product.  The production day of product is just the first day of the 
environment friendly age limit.  The environment friendly a ge limit is expressed by 
the unit of years. The environmentally -friendly age limit of products is specified by 
the manufacturers themselves.  
10.10 When the complete appliance is inspected to be not complying with the 
regulations of “ Administration on the C ontrol of Pollution Caused by Electronic 
Information Products ,” the producer of the complete appliance shall be responsible for 
the non -conformance, and the responsibility of the elements and parts factory shall be 
traced by the factory of the complete app liance.  If the products independently sold 
by the factory of elements and parts are inspected to be not complying with the 
regulations of “ Administration on the Control of Pollution Caused by Electronic 
Information Products ,” the producer of the elements and parts should be responsible 
for the non -conformance.  
10.11 All the electronic information products and materials have to be stuck with a 
label with name, contents and the related information of the toxic and hazardous 
substances or elements.  When mark s are to be stuck on products, tests of products 
can be made.  If the producer is very clear about the contents and the related 
information of the toxic and hazardous substances or elements, it is not required to 
perform any tests. The test reports on the contents and the related information of the 
toxic and hazardous substances or elements can either be the report made by the local 
test laboratory, or the report made by the foreign test laboratory, provided that the 
report, identification and the related e nvironmental protection information are correct 
and complying with the facts.  
10.12 Principally, the suppliers of the elements, components or materials purchased 
locally or from foreign countries for production should undergo the marking and 
identification  of the related environmental protection information.  If there is an 
agreement or contract signed between the suppliers of the elements, components or 
materials and the downstream producers, the suppliers of the elements, components or 
materials need not perform the indication. However, the related environmental 
protection information has to be transmitted to the downstream producers.  The 
downstream producers have to stick the labels on the final products, and give clear 
indication on the manual of the fi nal products.  10.13   The parts or fixings of burning appliance products are composed of multiple 
elements, components or materials.  It is a combination of elements and components 
with relatively independent functions. There is a great variety of the kind s of 
electronic information products, so it is impossible to list out all the parts or fixings of 
products.  Hence, the producers are only required to make a concrete division by 
following the habitual practice of the industry. It is only required to indic ate the 
contents of the toxic and hazardous substances or elements, and the related 
information of the products. It is not required to indicate the elements, components or 
materials of the non -toxic and non -hazardous substances or elements.  Annex A  
(Norma tive Annex)  
 
Installation, fume exhaust and ventilation of gas burning appliances, and 
airtightness of pipeline  
 
Table A.1   Installation, fume exhaust and ventilation of gas burning appliances, 
and airtightness of pipeline  
 
Product Name   Model No   Produce r  Production date   
Serial No.  Item Contents  Conclusion  
Certification of installation unit   
1 Quality  
Recognition of training of fixer   
Permitted  Kitchen, external corridor, balcony, outdoors   
2 Installation 
location  Not 
permitted  Bedroom, basemen t, 
bathroom, the 
inflammable, explosive 
and corrosive room  Area of gas inlet is 
greater than the area 
of gas exhaust funnel   
Stove, etc.  Possess natural gas/fume 
exhaust hood, or 
compulsory fume exhaust 
hood or air exchan ge fan  Area of gas inlet is 
above 9.5cm2/kW  
Natural gas 
exhaust  The wind cap of gas/fume 
exhaust pipe is out of the 
positive pressure zone of 
building    
Compulsory 
gas exhaust  The gas funnel or fume exhaust hood has linkage 
action with the gas exhau st fan.   
Natural gas 
supply/ 
exhaust  The gas supply/ exhaust funnel is connected to the 
outdoors or the public flue.   3 Indoor type 
burning 
appliances  
Compulsory 
gas 
supply/exhau
st The gas supply/ exhaust funnel is connected to the 
outdoors or the public flue.   
4  Gas flue  There sh ould be no leakage on the gas flue.   
Note 1:  For the installation location, fume exhaust and ventilation, please refer to the requirements set out in 
CJJ12.  Note 2:  The balanced -type burning appliances can be installed inside the bathroom.  
Note 3:  For the burning appliances using AC power, inspect the electrical environment conditions of the 
building installed with burning appliances, and whether the electrical grounding of burning appliances 
is safe.  
 Annex B  
(Normative Annex)  
 
Use and maintenance of  gas burning appliances  
 
B.1   Inspect the user’s correct use situation of burning appliances according to the 
requirements set out in the user manual of the burning appliance product.  
B.2   Inspect the maintenance situation of burning appliances according  to the 
requirements set out in the user manual of the burning appliance product.  
B.3   Inspect the qualifications of the maintenance staff.  Annex C  
(Normative Annex)  
 
Quality of gas supply  
 
Table C.1   Kinds of Gas  
Item Kinds of Gas  Wobbe 
No Burning 
beha viour C p Conclusion  
Artificial gas  5R 6R 7R     
Natural gas  4T 6T 10T 12T 
13T    
Liquefied petroleum gas  19Y 20Y 22Y     
Remarks:  For gas quality, please refer to GB/T 16411.  
 
Table C.2   Pressure of Supplied Gas  
Item Rated Pressure p n/Pa Fluctuation 
Range  Conclusion  
Artificial gas  1000  0.75~1.5 p n  
Natural gas  4T 6T        1000  
10T 12T 13T  2000  0.75~1.5 p n  
Bottled liquefied petroleum gas  2800  ± 0.5kPa   
Note 1:  The liquefied petroleum gas pressure of flue is 0.75~1.5 p n. 
Note 2:  Whether the liqu efied petroleum gas pressure regulator is passed, please 
refer to the requirements of the related standards.  
 Annex D  
(Normative Annex)  
 
Quality of gas burning appliances  
 
Table D.1   Quality of burning appliances  
Product 
Name   Model 
No  Producer   Date o r 
production   
Serial 
No. Test Item  Requirements  Conditions 
of gas 
quality test  Conclusion  
Tempering  Meeting the requirements 
of the related standards of 
product.  2-3  
Yellow flame  Meeting the requirements 
of the related standards of 
product.  1-2  1 
Flame 
stability  
Staying away from flame  Meeting the requirements 
of the related standards of 
product.  3-1  
Flue-free burning 
appliances, e.g. stove, etc.  The CO content in fume 
should be less than 0.15%.  1-1  
The CO content in fume 
should be less than 0.20%.  1-1  2 
CO content in 
fume and safe 
cut-off device  Burning appliances with 
flue, e.g. gas -fired fast 
water heater, volumetric 
water heater, two -purpose 
stove, etc.  When the CO content in 
fume is less than 0.20%, the 
safety cut -off device is cut.  0-2  
Airtightness  When the inlet of burning 
appliances is under air 
pressure 4.2kPa, the 
leakage should be less than 
0.07L/h.  Air  3 
Accident of AC power shock  The accident of AC power 
shock is investigated 
according to the related 
requirements of GB47 06.   
Remarks: The definition for the condition of gas quality test is shown in the requirements of GB/T 16411.